Huma Finance’s PayFi Strategy Token, or $PST, is now live as collateral on Morpho, letting holders borrow USDC against their position without selling. The vault, curated by RockawayX, went live on June 10 and marks another step in the slow but steady merger of real-world payment infrastructure with DeFi lending rails.
$PST represents deposits into Huma’s Classic Mode pools, which are backed by short-duration payment financing activities, essentially real receivables from cross-border payment flows. Now those deposits can double as borrowing power.
What the vault actually does
Morpho’s architecture uses isolated lending markets rather than the shared pool model popularized by Aave and Compound. Each market has its own risk parameters, which means a blowup in one corner doesn’t necessarily contaminate everything else.
RockawayX, an active onchain liquidity provider that has operated vaults on both Morpho and Kamino, serves as the curator for this particular USDC vault. Their job involves selecting which markets to include, setting supply caps, and independently monitoring asset reserves. Any changes to vault parameters are subject to a 24-hour timelock, a guardrail designed to prevent sudden, unannounced adjustments.
